/* 自定义样式 */
.todo-item {
    transition: all 0.3s ease;
}

.todo-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.todo-item.completed {
    opacity: 0.7;
}

.todo-item.completed .todo-title {
    text-decoration: line-through;
    color: #9ca3af;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* 按钮悬停效果 */
.action-btn {
    transition: all 0.2s ease;
}

.action-btn:hover {
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .flex-wrap-mobile {
        flex-wrap: wrap;
    }
}
